A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as
cross- fertilisation
self- fertilisation
isogamous
viviparous
Stem cuttings are commonly used for the proprogation of
banana
rose
mango
cotton
B.
rose
Stem cuttings are used in Citrus, Cocoa. Rooting of stem cuttings is hastened by dipping in NAA or IBA.
Grafting is usually done in case of mango.
Rhizomes take part in vegetative propogation due to presence of buds, eg, banana, ginger.
Edible part in 'sorosis', a composite fruit, is
cotyledons
endosperm
perianth and peduncle
fleshy thalamus